Home / 4,918.86-7,376.70-1,631.20

Finding the Fourth Proportional to 4,918.86, 7,376.70 and 1,631.20

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Solution

The fourth proportional to 4,918.86, 7,376.70 and 1,631.20 is: 2,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,918.86 : 7,376.70 = 1,631.20 : x
  2. Step 2: Convert to fraction form
    4,918.86/7,376.70 = 1,631.20/x
  3. Step 3: Cross multiply
    4,918.86x = 7,376.70 × 1,631.20
  4. Step 4: Simplify right side
    4,918.86x = 12,032,873.04
  5. Step 5: Solve for x
    x = 12,032,873.04/4,918.86
  6. Step 6: Final answer
    x = 2,446.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.